Passi risolutivi (18)
Passo 1
Hidden Singles
valore: 6.3
categoria doc: Getting_Started
1 in C6 is last in column/box
5 in D5 is last in column/box
Passo 2
Hidden Singles
valore: 5.8
categoria doc: Getting_Started
4 in C4 is last in box
4 in G6 is last in column
Passo 3
Hidden Singles
valore: 5.6
categoria doc: Getting_Started
4 in B7 is last in column
Passo 4
Naked Pair
valore: 26.4
categoria doc: Naked_Candidates
Naked Pair 2/8 on cells {A4|A5} means
- 2/8 can be removed from A1
- 2/8 can be removed from A9
- 2/8 can be removed from B5
- 2/8 can be removed from C5
Passo 5
Naked Pair
valore: 26.1
categoria doc: Naked_Candidates
Naked Pair 3/7 on cells {B5|C5} means
- 3 can be removed from G5
- 3 can be removed from H5
Passo 6
Hidden Singles
valore: 5.1
categoria doc: Getting_Started
3 in G4 is last in box
Passo 7
Naked Pair
valore: 23.8
categoria doc: Naked_Candidates
Naked Pair 2/9 on cells {J5|J6} means
- 2/9 can be removed from G5
- 2/9 can be removed from H5
- 2/9 can be removed from J1
- 2/9 can be removed from J9
Passo 8
Hidden Singles
valore: 4.7
categoria doc: Getting_Started
9 in J5 is last in column
Passo 9
Hidden Singles
valore: 4.5
categoria doc: Getting_Started
2 in A5 is last in column
2 in D4 is last in row/box
Passo 10
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 8 in A4 changed to solution
Last candidate 7 in F4 changed to solution
Last candidate 6 in E4 changed to solution
Last candidate 5 in F2 changed to solution
Passo 11
Pointing Pairs
valore: 59.4
categoria doc: Intersection_Removal
Pair: between Box 6 and Col 9:
- 9 can be removed from G9
- 9 can be removed from H9
Passo 12
X-Wing
valore: 114.7
categoria doc: X_Wing_Strategy
(Col->Row) 1 taken off B1, based on AJ19
(Col->Row) 1 taken off E1, based on AJ19
(Col->Row) 1 taken off G1, based on AJ19
(Col->Row) 1 taken off B9, based on AJ19
(Col->Row) 1 taken off G9, based on AJ19
Passo 13
Hidden Singles
valore: 3.8
categoria doc: Getting_Started
1 in E2 is last in row/box
Passo 14
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
7 in G2 is last in column
Passo 15
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 5 in A1 changed to solution
Last candidate 1 in A9 changed to solution
Passo 16
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
1 in B3 is last in row/column/box
1 in G8 is last in row/column/box
7 in C7 is last in column
Passo 17
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 3 in C5 changed to solution
Last candidate 7 in B5 changed to solution
Last candidate 6 in C3 changed to solution
Last candidate 5 in G3 changed to solution
Last candidate 4 in H3 changed to solution
Passo 18
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 2 in B2 changed to solution
Last candidate 8 in B8 changed to solution
Last candidate 6 in B9 changed to solution
Last candidate 9 in C2 changed to solution
Last candidate 3 in D3 changed to solution
Last candidate 9 in D6 changed to solution
Last candidate 7 in D8 changed to solution
Last candidate 4 in D9 changed to solution
Last candidate 7 in E1 changed to solution
Last candidate 3 in E8 changed to solution
Last candidate 4 in F1 changed to solution
Last candidate 8 in F9 changed to solution
Last candidate 2 in G9 changed to solution
Last candidate 6 in H2 changed to solution
Last candidate 8 in H5 changed to solution
Last candidate 9 in H7 changed to solution
Last candidate 5 in H8 changed to solution
Last candidate 3 in H9 changed to solution
Last candidate 3 in B1 changed to solution
Last candidate 8 in C1 changed to solution
Last candidate 2 in C8 changed to solution
Last candidate 5 in C9 changed to solution
Last candidate 6 in D1 changed to solution
Last candidate 8 in E6 changed to solution
Last candidate 9 in E9 changed to solution
Last candidate 3 in F6 changed to solution
Last candidate 9 in G1 changed to solution
Last candidate 6 in G5 changed to solution
Last candidate 8 in G7 changed to solution
Last candidate 2 in H1 changed to solution